If I am looking for something, and there are several of the same item listed, I may watch them and see which one is cheaper. If I have bought one of the others, obviously I won't bid on the other multiple listings. Sometimes, I may be watching an item with every intention of buying it, and then something happens to where I can't buy it (car repairs, kids or friends needing money, illness, etc...). That's life....

I've had one or two things that didn't sell on EBay. It happens....

You know that if your item does't sell, EBay will let you re-list it for free, right?